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Tag: "recognize" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...l against intruders, yet also contain molecules to recognize and communicate with other cells or get nutrients. Cells also communicate with one another via small, membrane-bound vesicles that contain proteins or other molecular cargo. When delivering their goods, vesicles from one cell fuse with the outermost ...

A new plant-bacterial symbiotic mechanism promising for crop applications

...orated by the bacterium which enables the plant to recognize it, by molecular recognition, thereby allowing the microorganism to penetrate inside the plant by the root hairs. The finding raises the question as to what signalling pathway Bradyrhizodium might use to gain entry to the plant and set off nodulat...

Newly discovered antibody may be body's natural defense against Alzheimer's

...y these antibodies appears to be their capacity to recognize the oligomer's misfolded shape. "That was a su...odies can distinguish between them. The antibodies recognize a particular shape that proteins assume only when they become these toxic aggregates." The abili...

Massive herds of animals found to still exist in Southern Sudan

...och. “We need donors, partners and well wishers to recognize the importance of wildlife resources as the future backbone of the economy and development of Southern Sudan.” Added Luka Biong Deng, Minister for Presidential Affairs for GoSS, “We are recognizing the results of our peace dividend with the return...

Plants recognize their siblings, biologists discover

...ociety journal Biology Letters. “The ability to recognize and favour kin is common in animals, but this is the first time it has been shown in plants” said Susan Dudley, associate professor of biology at McMaster University in Hamilton, Canada. “When plants share their pots, they get competitive and start g...

'Nurse cells' make life and death decisions for infection-fighting cells

...e function of T cells produced by the thymus is to recognize harmful invaders. Once invaders have been identified, T cells then attempt to eliminate disease-infected cells. "In early studies, it was suggested that thymic nurse cells only removed non-functional thymocytes," said Eve Barak, program director i...

Better insight into brain anatomical structures

...he manganese oxide nanoparticles. These antibodies recognize and specifically bind to receptors on the surface of breast cancer cells. In mouse brains with breast cancer metastases, the tumors were clearly highlighted by the antibody-coupled contrast agent. The same principle should allow other disease-related...

A frown or a smile? Children with autism can't discern

...en when gazing directly into someone’s eyes, don’t recognize visual cues and don’t process that information. That may be why children diagnosed with autism have varying degrees of impairment in communication skills and social interactions and display restricted, repetitive and stereotyped patterns of behavior....

Premature births may be linked to seasonal levels of pesticides and nitrates in surface water

...rch, and public health initiatives of our time. To recognize that what we put into our environment has potential pandemic effects on pregnancy outcome and possibly on child development is a momentous observation, which hopefully will help transform the way humanity cares for its world," said James Lemons, M.D....

The quest for an effective HIV vaccine presents new possibilities, challenges

...xposure, the immune system develops the ability to recognize the specific microbe and can protect the human body against it if it reappears. HIV, however, has thwarted scientists?efforts thus far to develop a classic preventive vaccine for the virus because of its ability to integrate into target cells and eva...

NIDA study identifies genes that might help some people abstain from smoking

...involved in cell adhesion, which governs how cells recognize and connect to their neighbors) and a cyclic G-dependent protein kinase gene, which plays a key role in normal brain development. In addition to genes implicated in intracellular signaling and intercellular interactions, a number of genes involved in...

Gut research yields new anti-cancer approach

...lls have evolved to include "efflux" proteins that recognize standard chemotherapies as foreign, and "pump them out" of tumor cells. Even for breast and lung cancer, the tumor types for which Taxol is most used, nearly 100 percent of these tumors eventually become resistant, said Alok A. Khorana, M.D., assista...

Study shows isolation of stem cells may lead to a treatment for hearing loss

...meone listening to their i-Pod loud enough for you recognize the song? Studies have shown noise-induced hearing loss is going to become the next big epidemic affecting our younger generation though the effects won’t show until it is too late to treat. In addition to loud noise, certain cancer drugs or geneti...

Gene found for rare disorder may reveal new pathway in mental retardation

... of these patients, an experienced clinician might recognize their more subtle facial features as suggestive of CdLS, but for the most part, they would only come to clinical attention for having mild to moderate mental retardation," said Matthew A. Deardorff, M.D., the first author of the study and a fellow in...

Major gene study uncovers secrets of leukemia

...ntiate because of the mutations, the body will not recognize them as defective immune cells and destroy them. I...mphocytes," Downing said. "And then the body would recognize them as defective B lymphocytes and destroy them." ...

Scripps research study shows humans and plants share common regulatory pathway

...functions of these proteins." The Nod proteins recognize invasive bacteria, specifically distinct substructures found in Gram-negative and Gram-positive organisms. Once activated, Nod1 produces a number of responses that include activation of intracellular signaling pathways, cytokine production and apopto...

Study calculates patient time costs associated with cancer care

...ccompanying editorial. "We hope that policy makers recognize the substantial economic burden of cancer in the United States and that this cost derives from many sources ?." The editorial writers also note that these calculations do not address the emotional cost cancer patients and their families endure. Ev...

Mimicking how the brain recognizes street scenes

...or instance, systems engineered to detect faces or recognize textures are poor at detecting cars. In the biolo...g Object Recognition Teaching a computer how to recognize objects has been exceedingly difficult because a computer model has two paradoxical goals. It needs ...

Africa's first large-scale HIV vaccine study launches

...e body to make killer cells that are programmed to recognize and destroy cells that are infected with HIV. The studies already completed with this vaccine suggest that it is generally well tolerated and that the response of the immune system or immunogenicity is high. In South Africa, the vaccine trial is ...

New technologies coming too fast for Indian farmers

...Stone's study shows that the farmers' inability to recognize the varying seeds being sold at market contributes...e actually the same seed," he says. "Farmers can't recognize what they are getting. As a result, the farmers can't properly evaluate seeds. Instead, they ask the...

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